Sewage-pumping apparatus



Pame' 'Nev'. 16, i926.t

I PANY, OF. CHICA-GO, ILLINOIS 1,601,248, UNITED STATES Pli'T-El'r OFFICE-...l

l AueUs'rUs CORPORATION 0F ILLINOIS.. l

sEwAG'E-PUMPING ArrAnATUs.

' Application led August `-the pump against the entrance of the more or less solid substances whereby the pump is prevented. from becoming clogged or seriously injured.` Another object is' to simplify apparatus of this kind and to dispense vwith the usual screening device or screens for straining yout the more or lessI solid sub/ a tank or reservoir by aJ pipe 13. If desiredl i stances; Another object is to provide a collection chamber for .the more or less solid substances in. vadvance `of the pump and to provide automatic means for intermittently flushing out the collection chamber and thereby freeing it of the collected foreign matter.

With these and other objects and advan- Wages in view this invention consists in a pum ingapparatus embod ing an intermittent y operating pump an a trap or collecwhich the elevation an tion receptacle interposed in the inlet pipe to the pump. It further consists in the provision of a` liquid receiving chamber, in combination withthe pump and collection receptacle or trap and means controlled by the volume of water in the liquid receiving chamber for starting and stopping the pump. It further consists in the several novel features of construction, arrangement and combination of parts hereinafter fully set forth and claimed. g i

The invention is clearl drawing accompanying t illustrated in the sspecification, in re is a view, partly in side partly in vertical section, of pumping apparatus embodying a simple form ofthe present invention. j

' 'Referring to said drawing, the reference character 1 desi ates the inlet pipe of the apparatus whic is connected' to the dischar e pipe of the system which is to be han ed. Said inlet pipe 1 connects with the inlet 4 of a trap or collection receptacle 2.

In said inlet pi e 1 is a check valve 5 which opens toward t e trap 2, and if desired a valve 6 may be provided in said pipe 1 whereby the apparatus may be shut olf from the sewage system or lother source of liquid supply.- K

The trap or collection receptacle 2 contains a relatively large chamber 2, across the upper end 'of which extends a baille or wall 2, 152e. smal No. :126,499.

2b which divides the chamberk 2a into' two top of the trap or collection receptacle 2,l

and said pipe22 leads to the discharge end 12a of a pump 12. The intake side of the pump is connected with a chamber 9 sueltas a valve 13 may be interposed in the pipe 13 for the purpose of' shutting off-.the rest of `the apparatus from the tank or reservoir 9. The pump 12, is intermittently operated and in its present form is connected to and oper-. ated by an electric motor 14. The motor is controlled from an electric switch 15, which -is controlled by the volume of water vcontained in the tank or reservoir 9. In accordance with the invention as illustrated, the .switch lever 20 of the switch 15` is actuated by buttons 18, 19 that' are mounted on a switch actuating 4rod 16, which has a float 11 secured to its lower end that israised and lowered by the water contained in the ,tank or reservoir. If desired an inlet pipe 9a may be provided for the tank or reservoir 9 c. lnumana, Ja., or cnrcaco, mIaNoIs, AssIeNon 'rocHIcaeo PUMP' columay be discharged direct tem, and an outwardly opening check valve .26 isinterposed insaid pipe, preferably at the discharge' endl of the trap 2.' If desired a valve 27 may lie interposed in the discharge pipev 25 whereby the apparatus may be shut if therefrom. Most of the appara- -tus is usually contained in av pit 28 which.

is closed by a cover 29 and said cover 'may' furnish the support for the pump motor 14 if desired.

In the operation of the apparatuswater and other liquid containing more or less Solid substances, enter the trap 2 through the inlet pipe 1, and the water and other liquid rise, around the lower end of the .pump 12, through the pipe 13 and-dischar e into .the chamber' 9. 'The more solid 'suistances fall to the bottom of the portion a, of the collection chamber 2a ofthe trap and l baille 2P, rise in the pipe 22,V and flow to the remain there temporarily, and the less solid substances oat to the' to of the chamber 2a.` During this portion of t e operation of the apparatus the pump is quiescent but when E5 the level of the water in the tank or reservoir-9 reaches a predetermined high level, the' doat .11 has been carried up sudiciently to close the switch l5, thereby closing the electric circuit through the electric motor 14 and l thereby starting the pump'. WVhile the pump is operating, the liquid contained in the tank or reservoir 9 is pumped back through the pipes 13, 22 and into the passage b, oi the trapv orI collection receptacle 2. inasmuch ,l as the check valve 5 is closed against a return dow, the water entering through the passage b, ushes out the main chaniber, a,

of `the trap and discharges 'the contents through the check valve 26 and out through thedischarge pipe 25. i As soonas the .Water level of the tank or reservoir 9 reaches its predetermined low level the switch is .again opened, the motor and ,pump stopped,` and the sewage Water'dows into the trap 2, the liquidsI owing through the pipe 22, pump 12, pipe i3, and into the tank orreservoir v 9 as before, the more or less solid substances being deposited inx the main chamber, a, of the tra `This operation is carriedlon` in- 30 -delinite y.

l From the above it will be readily apparent that the more or less solid substances which are conta-ined in the sewage water,

reventin clogging of thev same andy doing amage t creto, and furthermore that the `liquids that do pass through the pump are' y vvutilized l:for ushing the trap which collects, 40 said more or less solid substances.

`^ described inconnection with the sewage pumping apparatus it is'to be understood that its use is not-ited thereto as it may be employed in other situations where it is necessary to pump liquids containing more,tv

or less solid substances. V

lMore or less variation of the exact details of construction -is possible Without departing from thespirit el 4this invention; ll 5@ desire, therefore,y not to lt myself to the exact' formel the construction shown and described, .but intend, in the following claims, to point out all ol the invention olisclosed herein. Y I

ll cla, as new, and desire to ysecure, by lLette-jsl vPatenti 1. ppm.;- apparatus p or pum wfg liquids contain more or lesssolidpsiilb f stances, the combinationot a separator havan inlet opening arran d to be connected to the source of liquid supply, .and

ya, discharge opening arranged to be. connected to a discharge pipe, said separator p y having also an outlet opening vand a, be -betweensaid I'et and outlet opegs exare kept from entering the pump, thereby,

ile the apparatus has been sho4 and liquids containing are deposited while theliquid is free to. no w to i and from said outlet opening, a lid vneonata tending part way do from the. top of the separator to leave a substantially U-shaped passage, on the bottom of which solid sub-k stances are deposited While vthe .liquid is tree to How to and from said outlet opening, a liquid receiving chamber, an intermittently operated pump, 4having an intake side connected ,to said liquid receiving chamber, and a discharge side connected to said outletl opening of the separator. f

2. lin a pumping apparatus for pumpingliquids containing more or less solid substances, the combination of a separator trap, havin an inlet opening at its upper end arranged for connection With the source of 'liquid supply and a discharge opening arranged for connection with a discharge pipe, .said separator. trap having also an outlet opening at jits upper end, to and trom which liquids may flow from the 7interior of the trap, a'liquid receiving chamber, an-interuxttently operated pump, having an intake side connected to said chamber, and a discharge side connected. to said outlet opening 0f the separator trap.

3, ln pumping apparatus forA pumping liquids containing more or less solid substances, the combination of a separator having an' inlet opening arranged to be connect-- ed to the source of liquid supply, and a discharge opening'arranged to be'connected to a discharge pipe, said separator having also an outlet openingand a baille between said inlet and outlet openings extending part f Way down froxnthe top of the separator to leave a substantially lll-shaped passage, on the bottom of which solid substances are deposited vwhile the liquid is free to ow to andirom said outlet opening, a liquid receiving chamber, an intermittently loperated pump, having an intake side connected to said liquid receivin chamber, and a dis-S charge side vconnecte to said outlet openingl of the separator, and switch mechanism for opening and closing the circuit to the motor, said switch mechanism bein actuated by the l rise and fall of liquid in said chamber.

4c. ln pumping apparatus for pumping more or vless solid substances, the combination of a separator having an inlet4 opening arrau ed to be connected to the source of liqui supply, and a discharge opening arrad to be conneted to a dischargepipe, sai separator having' also an outlet .openingandl a bae between. said. inlet"l and` f outlet openings extending vpart way down tromltheI top of thevseparator to leave ai substantially U-shaped lpas'- sage, on the bottom of which solid substances receiving chamber, an intermittently operated pump-having an intake ls1de connected to said liquidrecelving chamber, and adischarge side connected to said outlet opening -180 icio ` stances,

of the separator, and a float operated switch mechanism for opening and closin thel circuitto the motor, the float of said switch mechanism being actuated by the rise and fall of liquid in said chamber.

5. Ina pumping apparatus for pumping liquids containing. more or less solid subf stances, the combination of a separatorytrap,

having an inlet opening at its upper end aring and closing the circuit to the motor, said swltch mechanism being actuated by the rise and fall of liquid Lin said chamber.

6. In a pumping apparatus for pumping liquids containing more or less vsolid subthe combination of a separator trap, having an inlet opening at its upper end arranged or connection with the source of liquid supply and a dischaige opening'arrangedl for connection with a an intake side con-Y lscharge pipe, said separator trap at its upper end, to and from which liquids may flow `from the,interior bf the trap, a liquid receiving chamber, an intermittently operated pump, having an intake side connected to said chamber, and a discharge side connected to said outlet opening of the separator trap,land va iioat operated switch having also an outletA opening` mechanism for' opening'and closing the' cirv cuit tothe motor, the oat of said switch mechanism being actuated by the rise and fall of liquid in v.said chamber;

7. Inapparatus for pumping liquids containing more or less solid substances, a sep-v arating device comprising a chambered case, having an inlet opening and a discharge opening at one side and an outlet opening at the other side and a baie interposed tween said outlet opening and the inlet and ldischarge openings and projecting part Way downnfrom the top of said case.

8. In apparatus for pumping liquids containingmore or less solidsubstances, a separating device comprising a chambered case, having an inlet opening and a discharge opening at one side and an outlet opening at the otherside, and means for separating the solid substances from the liquid by gravity.

AUGUSTUS C.' DURDIN, J R. 

